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Patient-reported Outcomes and the Use of Bone Grafting in Distal Radius Osteotomy for Malunion Correction: A
Alexa Clark1, Shannon Su1, Orr Shauly2
1Department of Surgery, Emory University School of Medicine, Atlanta, Georgia.
Background:
Distal radius fractures (DRF) account for up to 18% of adult fractures, with malunion occurring in up to 25% of conservatively managed cases and 10% of surgically managed cases. Symptomatic malunion can lead to significant morbidity, including loss of forearm rotation, adaptive carpal instability, and arthritis. Corrective osteotomy is a key surgical intervention, yet there is no consensus on the optimal surgical approach, fixation technique, or necessity of bone grafting.
Case Description:
The purpose of this systematic review is to evaluate surgical outcomes of distal radius osteotomy for extra-articular malunion, compare volar and dorsal approaches, and assess the need for bone grafting.
Literature Review:
A search of PubMed (2000-2023) was conducted using predefined search terms to identify relevant studies. A total of 17 studies met inclusion criteria, which required primary data on DRF malunion correction, comparative analyses of volar versus dorsal approach, bone graft necessity, and patient-reported outcomes. Data on complication rates, patient satisfaction, and clinical questionnaire scores were analyzed. Volar plate fixation outcomes were assessed in 10 studies, with 5 using bone grafting and 5 without. Both the groups demonstrated significant improvement in patient-reported outcome measures (PROMs), radiographic measures, and grip strength. Four studies without bone grafting reported zero cases of nonunion, while one study was discontinued due to persistent malunion in 20% of cases. Bone grafting, including autologous and synthetic options, was associated with similar functional and radiographic outcomes. Two studies directly compared volar and dorsal approaches. Both the approaches demonstrated significant improvements in range of motion and patient-reported outcomes. However, the volar approach resulted in significantly greater wrist flexion ( p = 0.012) and fewer hardware-related complications compared with dorsal plating. Three studies assessed the necessity of bone grafts and showed mixed results. While some demonstrated successful outcomes without grafting, others reported improved union rates with cancellous grafts. One study found no difference between autologous and synthetic grafts.
Clinical Relevance:
Corrective osteotomy for DRF malunion significantly improves patient outcomes, with volar plate fixation trending toward better outcomes over dorsal plating. Bone grafting may not be essential for all cases, particularly when stable fixation is achieved with cortical bony contact. Further high-quality comparative studies are needed to refine surgical decision-making.
